In collaboration with the Lowell Community Health Center and the Lowell Boys and Girls Club, Dr. Handelman, Dr. Pbert and colleagues carried out an intervention trial, recruiting 25 overweight youth for a 5-month after-school intervention program. BMI, fasting insulin, and behavioral attitudes were monitored. There were not short-term improvements in physical health. The youth and their families had a very positive attitude toward the program, with changes in the direction of healthier diet behaviors. The social structure of this youth organization would be compatible with provision of long-term diet and life-style programs for all youth, including youth seeking to achieve normal body weight and physical activity.